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252b5132 | 1 | /* tc-i860.c -- Assemble for the I860 |
7dcc9865 | 2 | Copyright (C) 1989, 92, 93, 94, 95, 98, 1999 Free Software Foundation, Inc. |
252b5132 RH |
3 | |
4 | This file is part of GAS, the GNU Assembler. | |
5 | ||
6 | GAS is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GAS is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License along | |
17 | with GAS; see the file COPYING. If not, write to the Free Software | |
18 | Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | #include "as.h" | |
21 | ||
22 | #include "opcode/i860.h" | |
23 | ||
24 | void md_begin (); | |
25 | void md_number_to_chars (); | |
26 | void md_assemble (); | |
27 | char *md_atof (); | |
28 | void md_convert_frag (); | |
29 | int md_estimate_size_before_relax (); | |
30 | void md_number_to_imm (); | |
31 | void md_number_to_disp (); | |
32 | void md_number_to_field (); | |
33 | void md_ri_to_chars (); | |
34 | static void i860_ip (); | |
35 | /* void emit_machine_reloc(); */ | |
36 | ||
37 | const int md_reloc_size = sizeof (struct relocation_info); | |
38 | ||
39 | /* void (*md_emit_relocations)() = emit_machine_reloc; */ | |
40 | ||
41 | /* handle of the OPCODE hash table */ | |
42 | static struct hash_control *op_hash = NULL; | |
43 | ||
44 | static void s_dual (), s_enddual (); | |
45 | static void s_atmp (); | |
46 | ||
47 | const pseudo_typeS | |
48 | md_pseudo_table[] = | |
49 | { | |
50 | {"dual", s_dual, 4}, | |
51 | {"enddual", s_enddual, 4}, | |
52 | {"atmp", s_atmp, 4}, | |
53 | {NULL, 0, 0}, | |
54 | }; | |
55 | ||
56 | /* This array holds the chars that always start a comment. If the | |
57 | pre-processor is disabled, these aren't very useful */ | |
58 | const char comment_chars[] = "!/"; /* JF removed '|' from comment_chars */ | |
59 | ||
60 | /* This array holds the chars that only start a comment at the beginning of | |
61 | a line. If the line seems to have the form '# 123 filename' | |
62 | .line and .file directives will appear in the pre-processed output */ | |
63 | /* Note that input_file.c hand checks for '#' at the beginning of the | |
64 | first line of the input file. This is because the compiler outputs | |
65 | #NO_APP at the beginning of its output. */ | |
66 | /* Also note that comments like this one will always work. */ | |
67 | const char line_comment_chars[] = "#/"; | |
68 | ||
69 | const char line_separator_chars[] = ""; | |
70 | ||
71 | /* Chars that can be used to separate mant from exp in floating point nums */ | |
72 | const char EXP_CHARS[] = "eE"; | |
73 | ||
74 | /* Chars that mean this number is a floating point constant */ | |
75 | /* As in 0f12.456 */ | |
76 | /* or 0d1.2345e12 */ | |
77 | const char FLT_CHARS[] = "rRsSfFdDxXpP"; | |
78 | ||
79 | /* Also be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be | |
80 | changed in read.c . Ideally it shouldn't have to know about it at all, | |
81 | but nothing is ideal around here. | |
82 | */ | |
83 | int size_reloc_info = sizeof (struct relocation_info); | |
84 | ||
85 | static unsigned char octal[256]; | |
86 | #define isoctal(c) octal[c] | |
87 | static unsigned char toHex[256]; | |
88 | ||
89 | struct i860_it | |
90 | { | |
91 | char *error; | |
92 | unsigned long opcode; | |
93 | struct nlist *nlistp; | |
94 | expressionS exp; | |
95 | int pcrel; | |
96 | enum expand_type expand; | |
97 | enum highlow_type highlow; | |
98 | enum reloc_type reloc; | |
99 | } the_insn; | |
100 | ||
101 | #if __STDC__ == 1 | |
102 | ||
103 | static void print_insn (struct i860_it *insn); | |
104 | static int getExpression (char *str); | |
105 | ||
106 | #else /* not __STDC__ */ | |
107 | ||
108 | static void print_insn (); | |
109 | static int getExpression (); | |
110 | ||
111 | #endif /* not __STDC__ */ | |
112 | ||
113 | static char *expr_end; | |
114 | static char last_expand; /* error if expansion after branch */ | |
115 | ||
116 | enum dual | |
117 | { | |
118 | DUAL_OFF = 0, DUAL_ON, DUAL_DDOT, DUAL_ONDDOT, | |
119 | }; | |
120 | static enum dual dual_mode = DUAL_OFF; /* dual-instruction mode */ | |
121 | ||
122 | static void | |
123 | s_dual () /* floating point instructions have dual set */ | |
124 | { | |
125 | dual_mode = DUAL_ON; | |
126 | } | |
127 | ||
128 | static void | |
129 | s_enddual () /* floating point instructions have dual set */ | |
130 | { | |
131 | dual_mode = DUAL_OFF; | |
132 | } | |
133 | ||
134 | static int atmp = 31; /* temporary register for pseudo's */ | |
135 | ||
136 | static void | |
137 | s_atmp () | |
138 | { | |
139 | register int temp; | |
140 | if (strncmp (input_line_pointer, "sp", 2) == 0) | |
141 | { | |
142 | input_line_pointer += 2; | |
143 | atmp = 2; | |
144 | } | |
145 | else if (strncmp (input_line_pointer, "fp", 2) == 0) | |
146 | { | |
147 | input_line_pointer += 2; | |
148 | atmp = 3; | |
149 | } | |
150 | else if (strncmp (input_line_pointer, "r", 1) == 0) | |
151 | { | |
152 | input_line_pointer += 1; | |
153 | temp = get_absolute_expression (); | |
154 | if (temp >= 0 && temp <= 31) | |
155 | atmp = temp; | |
156 | else | |
157 | as_bad (_("Unknown temporary pseudo register")); | |
158 | } | |
159 | else | |
160 | { | |
161 | as_bad (_("Unknown temporary pseudo register")); | |
162 | } | |
163 | demand_empty_rest_of_line (); | |
164 | } | |
165 | ||
166 | /* This function is called once, at assembler startup time. It should | |
167 | set up all the tables, etc. that the MD part of the assembler will need. */ | |
168 | void | |
169 | md_begin () | |
170 | { | |
171 | register char *retval = NULL; | |
172 | int lose = 0; | |
173 | register unsigned int i = 0; | |
174 | ||
175 | op_hash = hash_new (); | |
176 | ||
177 | while (i < NUMOPCODES) | |
178 | { | |
179 | const char *name = i860_opcodes[i].name; | |
180 | retval = hash_insert (op_hash, name, &i860_opcodes[i]); | |
181 | if (retval != NULL) | |
182 | { | |
183 | fprintf (stderr, _("internal error: can't hash `%s': %s\n"), | |
184 | i860_opcodes[i].name, retval); | |
185 | lose = 1; | |
186 | } | |
187 | do | |
188 | { | |
189 | if (i860_opcodes[i].match & i860_opcodes[i].lose) | |
190 | { | |
191 | fprintf (stderr, _("internal error: losing opcode: `%s' \"%s\"\n"), | |
192 | i860_opcodes[i].name, i860_opcodes[i].args); | |
193 | lose = 1; | |
194 | } | |
195 | ++i; | |
196 | } | |
197 | while (i < NUMOPCODES | |
198 | && !strcmp (i860_opcodes[i].name, name)); | |
199 | } | |
200 | ||
201 | if (lose) | |
202 | as_fatal (_("Broken assembler. No assembly attempted.")); | |
203 | ||
204 | for (i = '0'; i < '8'; ++i) | |
205 | octal[i] = 1; | |
206 | for (i = '0'; i <= '9'; ++i) | |
207 | toHex[i] = i - '0'; | |
208 | for (i = 'a'; i <= 'f'; ++i) | |
209 | toHex[i] = i + 10 - 'a'; | |
210 | for (i = 'A'; i <= 'F'; ++i) | |
211 | toHex[i] = i + 10 - 'A'; | |
212 | } | |
213 | ||
214 | void | |
215 | md_assemble (str) | |
216 | char *str; | |
217 | { | |
218 | char *toP; | |
219 | int rsd; | |
220 | int no_opcodes = 1; | |
221 | int i; | |
222 | struct i860_it pseudo[3]; | |
223 | ||
224 | assert (str); | |
225 | i860_ip (str); | |
226 | ||
227 | /* check for expandable flag to produce pseudo-instructions */ | |
228 | if (the_insn.expand != 0 && the_insn.highlow == NO_SPEC) | |
229 | { | |
230 | for (i = 0; i < 3; i++) | |
231 | pseudo[i] = the_insn; | |
232 | ||
233 | switch (the_insn.expand) | |
234 | { | |
235 | ||
236 | case E_DELAY: | |
237 | no_opcodes = 1; | |
238 | break; | |
239 | ||
240 | case E_MOV: | |
241 | if (the_insn.exp.X_add_symbol == NULL && | |
242 | the_insn.exp.X_op_symbol == NULL && | |
243 | (the_insn.exp.X_add_number < (1 << 15) && | |
244 | the_insn.exp.X_add_number >= -(1 << 15))) | |
245 | break; | |
246 | /* or l%const,r0,ireg_dest */ | |
247 | pseudo[0].opcode = (the_insn.opcode & 0x001f0000) | 0xe4000000; | |
248 | pseudo[0].highlow = PAIR; | |
249 | /* orh h%const,ireg_dest,ireg_dest */ | |
250 | pseudo[1].opcode = (the_insn.opcode & 0x03ffffff) | 0xec000000 | | |
251 | ((the_insn.opcode & 0x001f0000) << 5); | |
252 | pseudo[1].highlow = HIGH; | |
253 | no_opcodes = 2; | |
254 | break; | |
255 | ||
256 | case E_ADDR: | |
257 | if (the_insn.exp.X_add_symbol == NULL && | |
258 | the_insn.exp.X_op_symbol == NULL) | |
259 | break; | |
260 | /* orh ha%addr_expr,r0,r31 */ | |
261 | pseudo[0].opcode = 0xec000000 | (atmp << 16); | |
262 | pseudo[0].highlow = HIGHADJ; | |
263 | pseudo[0].reloc = LOW0; /* must overwrite */ | |
264 | /* l%addr_expr(r31),ireg_dest */ | |
265 | pseudo[1].opcode = (the_insn.opcode & ~0x003e0000) | (atmp << 21); | |
266 | pseudo[1].highlow = PAIR; | |
267 | no_opcodes = 2; | |
268 | break; | |
269 | ||
270 | case E_U32: /* 2nd version emulates Intel as, not doc. */ | |
271 | if (the_insn.exp.X_add_symbol == NULL && | |
272 | the_insn.exp.X_op_symbol == NULL && | |
273 | (the_insn.exp.X_add_number < (1 << 16) && | |
274 | the_insn.exp.X_add_number >= 0)) | |
275 | break; | |
276 | /* $(opcode)h h%const,ireg_src2,ireg_dest | |
277 | pseudo[0].opcode = (the_insn.opcode & 0xf3ffffff) | 0x0c000000; */ | |
278 | /* $(opcode)h h%const,ireg_src2,r31 */ | |
279 | pseudo[0].opcode = (the_insn.opcode & 0xf3e0ffff) | 0x0c000000 | | |
280 | (atmp << 16); | |
281 | pseudo[0].highlow = HIGH; | |
282 | /* $(opcode) l%const,ireg_dest,ireg_dest | |
283 | pseudo[1].opcode = (the_insn.opcode & 0xf01f0000) | 0x04000000 | | |
284 | ((the_insn.opcode & 0x001f0000) << 5); */ | |
285 | /* $(opcode) l%const,r31,ireg_dest */ | |
286 | pseudo[1].opcode = (the_insn.opcode & 0xf01f0000) | 0x04000000 | | |
287 | (atmp << 21); | |
288 | pseudo[1].highlow = PAIR; | |
289 | no_opcodes = 2; | |
290 | break; | |
291 | ||
292 | case E_AND: /* 2nd version emulates Intel as, not doc. */ | |
293 | if (the_insn.exp.X_add_symbol == NULL && | |
294 | the_insn.exp.X_op_symbol == NULL && | |
295 | (the_insn.exp.X_add_number < (1 << 16) && | |
296 | the_insn.exp.X_add_number >= 0)) | |
297 | break; | |
298 | /* andnot h%const,ireg_src2,ireg_dest | |
299 | pseudo[0].opcode = (the_insn.opcode & 0x03ffffff) | 0xd4000000; */ | |
300 | /* andnot h%const,ireg_src2,r31 */ | |
301 | pseudo[0].opcode = (the_insn.opcode & 0x03e0ffff) | 0xd4000000 | | |
302 | (atmp << 16); | |
303 | pseudo[0].highlow = HIGH; | |
304 | pseudo[0].exp.X_add_number = -1 - the_insn.exp.X_add_number; | |
305 | /* andnot l%const,ireg_dest,ireg_dest | |
306 | pseudo[1].opcode = (the_insn.opcode & 0x001f0000) | 0xd4000000 | | |
307 | ((the_insn.opcode & 0x001f0000) << 5); */ | |
308 | /* andnot l%const,r31,ireg_dest */ | |
309 | pseudo[1].opcode = (the_insn.opcode & 0x001f0000) | 0xd4000000 | | |
310 | (atmp << 21); | |
311 | pseudo[1].highlow = PAIR; | |
312 | pseudo[1].exp.X_add_number = -1 - the_insn.exp.X_add_number; | |
313 | no_opcodes = 2; | |
314 | break; | |
315 | ||
316 | case E_S32: | |
317 | if (the_insn.exp.X_add_symbol == NULL && | |
318 | the_insn.exp.X_op_symbol == NULL && | |
319 | (the_insn.exp.X_add_number < (1 << 15) && | |
320 | the_insn.exp.X_add_number >= -(1 << 15))) | |
321 | break; | |
322 | /* orh h%const,r0,r31 */ | |
323 | pseudo[0].opcode = 0xec000000 | (atmp << 16); | |
324 | pseudo[0].highlow = HIGH; | |
325 | /* or l%const,r31,r31 */ | |
326 | pseudo[1].opcode = 0xe4000000 | (atmp << 21) | (atmp << 16); | |
327 | pseudo[1].highlow = PAIR; | |
328 | /* r31,ireg_src2,ireg_dest */ | |
329 | pseudo[2].opcode = (the_insn.opcode & ~0x0400ffff) | (atmp << 11); | |
330 | pseudo[2].reloc = NO_RELOC; | |
331 | no_opcodes = 3; | |
332 | break; | |
333 | ||
334 | default: | |
335 | as_fatal (_("failed sanity check.")); | |
336 | } | |
337 | ||
338 | the_insn = pseudo[0]; | |
339 | /* check for expanded opcode after branch or in dual */ | |
340 | if (no_opcodes > 1 && last_expand == 1) | |
341 | as_warn (_("Expanded opcode after delayed branch: `%s'"), str); | |
342 | if (no_opcodes > 1 && dual_mode != DUAL_OFF) | |
343 | as_warn (_("Expanded opcode in dual mode: `%s'"), str); | |
344 | } | |
345 | ||
346 | i = 0; | |
347 | do | |
348 | { /* always produce at least one opcode */ | |
349 | toP = frag_more (4); | |
350 | /* put out the opcode */ | |
351 | md_number_to_chars (toP, the_insn.opcode, 4); | |
352 | ||
353 | /* check for expanded opcode after branch or in dual */ | |
354 | last_expand = the_insn.pcrel; | |
355 | ||
356 | /* put out the symbol-dependent stuff */ | |
357 | if (the_insn.reloc != NO_RELOC) | |
358 | { | |
359 | fix_new (frag_now, /* which frag */ | |
360 | (toP - frag_now->fr_literal), /* where */ | |
361 | 4, /* size */ | |
362 | &the_insn.exp, | |
363 | the_insn.pcrel, | |
364 | /* merge bit fields into one argument */ | |
365 | (int) (((the_insn.highlow & 0x3) << 4) | (the_insn.reloc & 0xf))); | |
366 | } | |
367 | the_insn = pseudo[++i]; | |
368 | } | |
369 | while (--no_opcodes > 0); | |
370 | ||
371 | } | |
372 | ||
373 | static void | |
374 | i860_ip (str) | |
375 | char *str; | |
376 | { | |
377 | char *s; | |
378 | const char *args; | |
379 | char c; | |
380 | unsigned long i; | |
381 | struct i860_opcode *insn; | |
382 | char *argsStart; | |
383 | unsigned long opcode; | |
384 | unsigned int mask; | |
385 | int match = 0; | |
386 | int comma = 0; | |
387 | ||
388 | ||
389 | for (s = str; islower (*s) || *s == '.' || *s == '3'; ++s) | |
390 | ; | |
391 | switch (*s) | |
392 | { | |
393 | ||
394 | case '\0': | |
395 | break; | |
396 | ||
397 | case ',': | |
398 | comma = 1; | |
399 | ||
400 | /*FALLTHROUGH*/ | |
401 | ||
402 | case ' ': | |
403 | *s++ = '\0'; | |
404 | break; | |
405 | ||
406 | default: | |
407 | as_fatal (_("Unknown opcode: `%s'"), str); | |
408 | } | |
409 | ||
410 | if (strncmp (str, "d.", 2) == 0) | |
411 | { /* check for d. opcode prefix */ | |
412 | if (dual_mode == DUAL_ON) | |
413 | dual_mode = DUAL_ONDDOT; | |
414 | else | |
415 | dual_mode = DUAL_DDOT; | |
416 | str += 2; | |
417 | } | |
418 | ||
419 | if ((insn = (struct i860_opcode *) hash_find (op_hash, str)) == NULL) | |
420 | { | |
421 | if (dual_mode == DUAL_DDOT || dual_mode == DUAL_ONDDOT) | |
422 | str -= 2; | |
423 | as_bad (_("Unknown opcode: `%s'"), str); | |
424 | return; | |
425 | } | |
426 | if (comma) | |
427 | { | |
428 | *--s = ','; | |
429 | } | |
430 | argsStart = s; | |
431 | for (;;) | |
432 | { | |
433 | opcode = insn->match; | |
434 | memset (&the_insn, '\0', sizeof (the_insn)); | |
435 | the_insn.reloc = NO_RELOC; | |
436 | ||
437 | /* | |
438 | * Build the opcode, checking as we go to make | |
439 | * sure that the operands match | |
440 | */ | |
441 | for (args = insn->args;; ++args) | |
442 | { | |
443 | switch (*args) | |
444 | { | |
445 | ||
446 | case '\0': /* end of args */ | |
447 | if (*s == '\0') | |
448 | { | |
449 | match = 1; | |
450 | } | |
451 | break; | |
452 | ||
453 | case '+': | |
454 | case '(': /* these must match exactly */ | |
455 | case ')': | |
456 | case ',': | |
457 | case ' ': | |
458 | if (*s++ == *args) | |
459 | continue; | |
460 | break; | |
461 | ||
462 | case '#': /* must be at least one digit */ | |
463 | if (isdigit (*s++)) | |
464 | { | |
465 | while (isdigit (*s)) | |
466 | { | |
467 | ++s; | |
468 | } | |
469 | continue; | |
470 | } | |
471 | break; | |
472 | ||
473 | case '1': /* next operand must be a register */ | |
474 | case '2': | |
475 | case 'd': | |
476 | switch (*s) | |
477 | { | |
478 | ||
479 | case 'f': /* frame pointer */ | |
480 | s++; | |
481 | if (*s++ == 'p') | |
482 | { | |
483 | mask = 0x3; | |
484 | break; | |
485 | } | |
486 | goto error; | |
487 | ||
488 | case 's': /* stack pointer */ | |
489 | s++; | |
490 | if (*s++ == 'p') | |
491 | { | |
492 | mask = 0x2; | |
493 | break; | |
494 | } | |
495 | goto error; | |
496 | ||
497 | case 'r': /* any register */ | |
498 | s++; | |
499 | if (!isdigit (c = *s++)) | |
500 | { | |
501 | goto error; | |
502 | } | |
503 | if (isdigit (*s)) | |
504 | { | |
505 | if ((c = 10 * (c - '0') + (*s++ - '0')) >= 32) | |
506 | { | |
507 | goto error; | |
508 | } | |
509 | } | |
510 | else | |
511 | { | |
512 | c -= '0'; | |
513 | } | |
514 | mask = c; | |
515 | break; | |
516 | ||
517 | default: /* not this opcode */ | |
518 | goto error; | |
519 | } | |
520 | /* | |
521 | * Got the register, now figure out where | |
522 | * it goes in the opcode. | |
523 | */ | |
524 | switch (*args) | |
525 | { | |
526 | ||
527 | case '1': | |
528 | opcode |= mask << 11; | |
529 | continue; | |
530 | ||
531 | case '2': | |
532 | opcode |= mask << 21; | |
533 | continue; | |
534 | ||
535 | case 'd': | |
536 | opcode |= mask << 16; | |
537 | continue; | |
538 | ||
539 | } | |
540 | break; | |
541 | ||
542 | case 'e': /* next operand is a floating point register */ | |
543 | case 'f': | |
544 | case 'g': | |
545 | if (*s++ == 'f' && isdigit (*s)) | |
546 | { | |
547 | mask = *s++; | |
548 | if (isdigit (*s)) | |
549 | { | |
550 | mask = 10 * (mask - '0') + (*s++ - '0'); | |
551 | if (mask >= 32) | |
552 | { | |
553 | break; | |
554 | } | |
555 | } | |
556 | else | |
557 | { | |
558 | mask -= '0'; | |
559 | } | |
560 | switch (*args) | |
561 | { | |
562 | ||
563 | case 'e': | |
564 | opcode |= mask << 11; | |
565 | continue; | |
566 | ||
567 | case 'f': | |
568 | opcode |= mask << 21; | |
569 | continue; | |
570 | ||
571 | case 'g': | |
572 | opcode |= mask << 16; | |
573 | if (dual_mode != DUAL_OFF) | |
574 | opcode |= (1 << 9); /* dual mode instruction */ | |
575 | if (dual_mode == DUAL_DDOT) | |
576 | dual_mode = DUAL_OFF; | |
577 | if (dual_mode == DUAL_ONDDOT) | |
578 | dual_mode = DUAL_ON; | |
579 | if ((opcode & (1 << 10)) && (mask == ((opcode >> 11) & 0x1f))) | |
580 | as_warn (_("Fsr1 equals fdest with Pipelining")); | |
581 | continue; | |
582 | } | |
583 | } | |
584 | break; | |
585 | ||
586 | case 'c': /* next operand must be a control register */ | |
587 | if (strncmp (s, "fir", 3) == 0) | |
588 | { | |
589 | opcode |= 0x0 << 21; | |
590 | s += 3; | |
591 | continue; | |
592 | } | |
593 | if (strncmp (s, "psr", 3) == 0) | |
594 | { | |
595 | opcode |= 0x1 << 21; | |
596 | s += 3; | |
597 | continue; | |
598 | } | |
599 | if (strncmp (s, "dirbase", 7) == 0) | |
600 | { | |
601 | opcode |= 0x2 << 21; | |
602 | s += 7; | |
603 | continue; | |
604 | } | |
605 | if (strncmp (s, "db", 2) == 0) | |
606 | { | |
607 | opcode |= 0x3 << 21; | |
608 | s += 2; | |
609 | continue; | |
610 | } | |
611 | if (strncmp (s, "fsr", 3) == 0) | |
612 | { | |
613 | opcode |= 0x4 << 21; | |
614 | s += 3; | |
615 | continue; | |
616 | } | |
617 | if (strncmp (s, "epsr", 4) == 0) | |
618 | { | |
619 | opcode |= 0x5 << 21; | |
620 | s += 4; | |
621 | continue; | |
622 | } | |
623 | break; | |
624 | ||
625 | case '5': /* 5 bit immediate in src1 */ | |
626 | memset (&the_insn, '\0', sizeof (the_insn)); | |
627 | if (!getExpression (s)) | |
628 | { | |
629 | s = expr_end; | |
630 | if (the_insn.exp.X_add_number & ~0x1f) | |
631 | as_bad (_("5-bit immediate too large")); | |
632 | opcode |= (the_insn.exp.X_add_number & 0x1f) << 11; | |
633 | memset (&the_insn, '\0', sizeof (the_insn)); | |
634 | the_insn.reloc = NO_RELOC; | |
635 | continue; | |
636 | } | |
637 | break; | |
638 | ||
639 | case 'l': /* 26 bit immediate, relative branch */ | |
640 | the_insn.reloc = BRADDR; | |
641 | the_insn.pcrel = 1; | |
642 | goto immediate; | |
643 | ||
644 | case 's': /* 16 bit immediate, split relative branch */ | |
645 | /* upper 5 bits of offset in dest field */ | |
646 | the_insn.pcrel = 1; | |
647 | the_insn.reloc = SPLIT0; | |
648 | goto immediate; | |
649 | ||
650 | case 'S': /* 16 bit immediate, split (st), aligned */ | |
651 | if (opcode & (1 << 28)) | |
652 | if (opcode & 0x1) | |
653 | the_insn.reloc = SPLIT2; | |
654 | else | |
655 | the_insn.reloc = SPLIT1; | |
656 | else | |
657 | the_insn.reloc = SPLIT0; | |
658 | goto immediate; | |
659 | ||
660 | case 'I': /* 16 bit immediate, aligned */ | |
661 | if (opcode & (1 << 28)) | |
662 | if (opcode & 0x1) | |
663 | the_insn.reloc = LOW2; | |
664 | else | |
665 | the_insn.reloc = LOW1; | |
666 | else | |
667 | the_insn.reloc = LOW0; | |
668 | goto immediate; | |
669 | ||
670 | case 'i': /* 16 bit immediate */ | |
671 | the_insn.reloc = LOW0; | |
672 | ||
673 | /*FALLTHROUGH*/ | |
674 | ||
675 | immediate: | |
676 | if (*s == ' ') | |
677 | s++; | |
678 | if (strncmp (s, "ha%", 3) == 0) | |
679 | { | |
680 | the_insn.highlow = HIGHADJ; | |
681 | s += 3; | |
682 | } | |
683 | else if (strncmp (s, "h%", 2) == 0) | |
684 | { | |
685 | the_insn.highlow = HIGH; | |
686 | s += 2; | |
687 | } | |
688 | else if (strncmp (s, "l%", 2) == 0) | |
689 | { | |
690 | the_insn.highlow = PAIR; | |
691 | s += 2; | |
692 | } | |
693 | the_insn.expand = insn->expand; | |
694 | ||
695 | /* Note that if the getExpression() fails, we will still have | |
696 | created U entries in the symbol table for the 'symbols' | |
697 | in the input string. Try not to create U symbols for | |
698 | registers, etc. */ | |
699 | ||
700 | if (!getExpression (s)) | |
701 | { | |
702 | s = expr_end; | |
703 | continue; | |
704 | } | |
705 | break; | |
706 | ||
707 | default: | |
708 | as_fatal (_("failed sanity check.")); | |
709 | } | |
710 | break; | |
711 | } | |
712 | error: | |
713 | if (match == 0) | |
714 | { | |
715 | /* Args don't match. */ | |
716 | if (&insn[1] - i860_opcodes < NUMOPCODES | |
717 | && !strcmp (insn->name, insn[1].name)) | |
718 | { | |
719 | ++insn; | |
720 | s = argsStart; | |
721 | continue; | |
722 | } | |
723 | else | |
724 | { | |
725 | as_bad (_("Illegal operands")); | |
726 | return; | |
727 | } | |
728 | } | |
729 | break; | |
730 | } | |
731 | ||
732 | the_insn.opcode = opcode; | |
733 | } | |
734 | ||
735 | static int | |
736 | getExpression (str) | |
737 | char *str; | |
738 | { | |
739 | char *save_in; | |
740 | segT seg; | |
741 | ||
742 | save_in = input_line_pointer; | |
743 | input_line_pointer = str; | |
744 | seg = expression (&the_insn.exp); | |
745 | if (seg != absolute_section | |
746 | && seg != undefined_section | |
747 | && ! SEG_NORMAL (seg)) | |
748 | { | |
749 | the_insn.error = _("bad segment"); | |
750 | expr_end = input_line_pointer; | |
751 | input_line_pointer = save_in; | |
752 | return 1; | |
753 | } | |
754 | expr_end = input_line_pointer; | |
755 | input_line_pointer = save_in; | |
756 | return 0; | |
757 | } | |
758 | ||
759 | ||
760 | /* | |
761 | This is identical to the md_atof in m68k.c. I think this is right, | |
762 | but I'm not sure. | |
763 | ||
764 | Turn a string in input_line_pointer into a floating point constant of type | |
765 | type, and store the appropriate bytes in *litP. The number of LITTLENUMS | |
766 | emitted is stored in *sizeP . An error message is returned, or NULL on OK. | |
767 | */ | |
768 | ||
769 | /* Equal to MAX_PRECISION in atof-ieee.c */ | |
770 | #define MAX_LITTLENUMS 6 | |
771 | ||
772 | char * | |
773 | md_atof (type, litP, sizeP) | |
774 | char type; | |
775 | char *litP; | |
776 | int *sizeP; | |
777 | { | |
778 | int prec; | |
779 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
780 | LITTLENUM_TYPE *wordP; | |
781 | char *t; | |
782 | char *atof_ieee (); | |
783 | ||
784 | switch (type) | |
785 | { | |
786 | ||
787 | case 'f': | |
788 | case 'F': | |
789 | case 's': | |
790 | case 'S': | |
791 | prec = 2; | |
792 | break; | |
793 | ||
794 | case 'd': | |
795 | case 'D': | |
796 | case 'r': | |
797 | case 'R': | |
798 | prec = 4; | |
799 | break; | |
800 | ||
801 | case 'x': | |
802 | case 'X': | |
803 | prec = 6; | |
804 | break; | |
805 | ||
806 | case 'p': | |
807 | case 'P': | |
808 | prec = 6; | |
809 | break; | |
810 | ||
811 | default: | |
812 | *sizeP = 0; | |
813 | return _("Bad call to MD_ATOF()"); | |
814 | } | |
815 | t = atof_ieee (input_line_pointer, type, words); | |
816 | if (t) | |
817 | input_line_pointer = t; | |
818 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
819 | for (wordP = words; prec--;) | |
820 | { | |
821 | md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE)); | |
822 | litP += sizeof (LITTLENUM_TYPE); | |
823 | } | |
824 | return 0; | |
825 | } | |
826 | ||
827 | /* | |
828 | * Write out big-endian. | |
829 | */ | |
830 | void | |
831 | md_number_to_chars (buf, val, n) | |
832 | char *buf; | |
833 | valueT val; | |
834 | int n; | |
835 | { | |
836 | number_to_chars_bigendian (buf, val, n); | |
837 | } | |
838 | ||
839 | void | |
840 | md_number_to_imm (buf, val, n, fixP) | |
841 | char *buf; | |
842 | long val; | |
843 | int n; | |
844 | fixS *fixP; | |
845 | { | |
846 | enum reloc_type reloc = fixP->fx_r_type & 0xf; | |
847 | enum highlow_type highlow = (fixP->fx_r_type >> 4) & 0x3; | |
848 | ||
849 | assert (buf); | |
850 | assert (n == 4); /* always on i860 */ | |
851 | ||
852 | switch (highlow) | |
853 | { | |
854 | ||
855 | case HIGHADJ: /* adjusts the high-order 16-bits */ | |
856 | if (val & (1 << 15)) | |
857 | val += (1 << 16); | |
858 | ||
859 | /*FALLTHROUGH*/ | |
860 | ||
861 | case HIGH: /* selects the high-order 16-bits */ | |
862 | val >>= 16; | |
863 | break; | |
864 | ||
865 | case PAIR: /* selects the low-order 16-bits */ | |
866 | val = val & 0xffff; | |
867 | break; | |
868 | ||
869 | default: | |
870 | break; | |
871 | } | |
872 | ||
873 | switch (reloc) | |
874 | { | |
875 | ||
876 | case BRADDR: /* br,call,bc,bc.t,bnc,bnc.t w/26-bit immediate */ | |
877 | if (fixP->fx_pcrel != 1) | |
878 | as_bad (_("26-bit branch w/o pc relative set: 0x%08x"), val); | |
879 | val >>= 2; /* align pcrel offset, see manual */ | |
880 | ||
881 | if (val >= (1 << 25) || val < -(1 << 25)) /* check for overflow */ | |
882 | as_bad (_("26-bit branch offset overflow: 0x%08x"), val); | |
883 | buf[0] = (buf[0] & 0xfc) | ((val >> 24) & 0x3); | |
884 | buf[1] = val >> 16; | |
885 | buf[2] = val >> 8; | |
886 | buf[3] = val; | |
887 | break; | |
888 | ||
889 | case SPLIT2: /* 16 bit immediate, 4-byte aligned */ | |
890 | if (val & 0x3) | |
891 | as_bad (_("16-bit immediate 4-byte alignment error: 0x%08x"), val); | |
892 | val &= ~0x3; /* 4-byte align value */ | |
893 | /*FALLTHROUGH*/ | |
894 | case SPLIT1: /* 16 bit immediate, 2-byte aligned */ | |
895 | if (val & 0x1) | |
896 | as_bad (_("16-bit immediate 2-byte alignment error: 0x%08x"), val); | |
897 | val &= ~0x1; /* 2-byte align value */ | |
898 | /*FALLTHROUGH*/ | |
899 | case SPLIT0: /* st,bla,bte,btne w/16-bit immediate */ | |
900 | if (fixP->fx_pcrel == 1) | |
901 | val >>= 2; /* align pcrel offset, see manual */ | |
902 | /* check for bounds */ | |
903 | if (highlow != PAIR && (val >= (1 << 16) || val < -(1 << 15))) | |
904 | as_bad (_("16-bit branch offset overflow: 0x%08x"), val); | |
905 | buf[1] = (buf[1] & ~0x1f) | ((val >> 11) & 0x1f); | |
906 | buf[2] = (buf[2] & ~0x7) | ((val >> 8) & 0x7); | |
907 | buf[3] |= val; /* perserve bottom opcode bits */ | |
908 | break; | |
909 | ||
910 | case LOW4: /* fld,pfld,pst,flush 16-byte aligned */ | |
911 | if (val & 0xf) | |
912 | as_bad (_("16-bit immediate 16-byte alignment error: 0x%08x"), val); | |
913 | val &= ~0xf; /* 16-byte align value */ | |
914 | /*FALLTHROUGH*/ | |
915 | case LOW3: /* fld,pfld,pst,flush 8-byte aligned */ | |
916 | if (val & 0x7) | |
917 | as_bad (_("16-bit immediate 8-byte alignment error: 0x%08x"), val); | |
918 | val &= ~0x7; /* 8-byte align value */ | |
919 | /*FALLTHROUGH*/ | |
920 | case LOW2: /* 16 bit immediate, 4-byte aligned */ | |
921 | if (val & 0x3) | |
922 | as_bad (_("16-bit immediate 4-byte alignment error: 0x%08x"), val); | |
923 | val &= ~0x3; /* 4-byte align value */ | |
924 | /*FALLTHROUGH*/ | |
925 | case LOW1: /* 16 bit immediate, 2-byte aligned */ | |
926 | if (val & 0x1) | |
927 | as_bad (_("16-bit immediate 2-byte alignment error: 0x%08x"), val); | |
928 | val &= ~0x1; /* 2-byte align value */ | |
929 | /*FALLTHROUGH*/ | |
930 | case LOW0: /* 16 bit immediate, byte aligned */ | |
931 | /* check for bounds */ | |
932 | if (highlow != PAIR && (val >= (1 << 16) || val < -(1 << 15))) | |
933 | as_bad (_("16-bit immediate overflow: 0x%08x"), val); | |
934 | buf[2] = val >> 8; | |
935 | buf[3] |= val; /* perserve bottom opcode bits */ | |
936 | break; | |
937 | ||
938 | case NO_RELOC: | |
939 | default: | |
940 | as_bad (_("bad relocation type: 0x%02x"), reloc); | |
941 | break; | |
942 | } | |
943 | } | |
944 | ||
945 | /* should never be called for i860 */ | |
946 | void | |
947 | md_number_to_disp (buf, val, n) | |
948 | char *buf; | |
949 | long val; | |
950 | { | |
951 | as_fatal (_("md_number_to_disp\n")); | |
952 | } | |
953 | ||
954 | /* should never be called for i860 */ | |
955 | void | |
956 | md_number_to_field (buf, val, fix) | |
957 | char *buf; | |
958 | long val; | |
959 | void *fix; | |
960 | { | |
961 | as_fatal (_("i860_number_to_field\n")); | |
962 | } | |
963 | ||
964 | /* the bit-field entries in the relocation_info struct plays hell | |
965 | with the byte-order problems of cross-assembly. So as a hack, | |
966 | I added this mach. dependent ri twiddler. Ugly, but it gets | |
967 | you there. -KWK */ | |
968 | /* on i860: first 4 bytes are normal unsigned long address, next three | |
969 | bytes are index, most sig. byte first. Byte 7 is broken up with | |
970 | bit 7 as pcrel, bit 6 as extern, and the lower six bits as | |
971 | relocation type (highlow 5-4). Next 4 bytes are long addend. */ | |
972 | /* Thanx and a tip of the hat to Michael Bloom, mb@ttidca.tti.com */ | |
973 | void | |
974 | md_ri_to_chars (ri_p, ri) | |
975 | struct relocation_info *ri_p, ri; | |
976 | { | |
977 | #if 0 | |
978 | unsigned char the_bytes[sizeof (*ri_p)]; | |
979 | ||
980 | /* this is easy */ | |
981 | md_number_to_chars (the_bytes, ri.r_address, sizeof (ri.r_address)); | |
982 | /* now the fun stuff */ | |
983 | the_bytes[4] = (ri.r_index >> 16) & 0x0ff; | |
984 | the_bytes[5] = (ri.r_index >> 8) & 0x0ff; | |
985 | the_bytes[6] = ri.r_index & 0x0ff; | |
986 | the_bytes[7] = ((ri.r_extern << 7) & 0x80) | (0 & 0x60) | (ri.r_type & 0x1F); | |
987 | /* Also easy */ | |
988 | md_number_to_chars (&the_bytes[8], ri.r_addend, sizeof (ri.r_addend)); | |
989 | /* now put it back where you found it, Junior... */ | |
990 | memcpy ((char *) ri_p, the_bytes, sizeof (*ri_p)); | |
991 | #endif | |
992 | } | |
993 | ||
994 | /* should never be called for i860 */ | |
995 | void | |
996 | md_convert_frag (headers, seg, fragP) | |
997 | object_headers *headers; | |
998 | segT seg; | |
999 | register fragS *fragP; | |
1000 | { | |
1001 | as_fatal (_("i860_convert_frag\n")); | |
1002 | } | |
1003 | ||
1004 | /* should never be called for i860 */ | |
1005 | int | |
1006 | md_estimate_size_before_relax (fragP, segtype) | |
1007 | register fragS *fragP; | |
1008 | segT segtype; | |
1009 | { | |
1010 | as_fatal (_("i860_estimate_size_before_relax\n")); | |
1011 | } | |
1012 | ||
1013 | /* for debugging only, must match enum reloc_type */ | |
1014 | static char *Reloc[] = | |
1015 | { | |
1016 | "NO_RELOC", | |
1017 | "BRADDR", | |
1018 | "LOW0", | |
1019 | "LOW1", | |
1020 | "LOW2", | |
1021 | "LOW3", | |
1022 | "LOW4", | |
1023 | "SPLIT0", | |
1024 | "SPLIT1", | |
1025 | "SPLIT2", | |
1026 | "RELOC_32", | |
1027 | }; | |
1028 | static char *Highlow[] = | |
1029 | { | |
1030 | "NO_SPEC", | |
1031 | "PAIR", | |
1032 | "HIGH", | |
1033 | "HIGHADJ", | |
1034 | }; | |
1035 | static void | |
1036 | print_insn (insn) | |
1037 | struct i860_it *insn; | |
1038 | { | |
1039 | if (insn->error) | |
1040 | { | |
1041 | fprintf (stderr, "ERROR: %s\n"); | |
1042 | } | |
1043 | fprintf (stderr, "opcode=0x%08x\t", insn->opcode); | |
1044 | fprintf (stderr, "expand=0x%08x\t", insn->expand); | |
1045 | fprintf (stderr, "reloc = %s\t", Reloc[insn->reloc]); | |
1046 | fprintf (stderr, "highlow = %s\n", Highlow[insn->highlow]); | |
1047 | fprintf (stderr, "exp = {\n"); | |
1048 | fprintf (stderr, "\t\tX_add_symbol = %s\n", | |
1049 | insn->exp.X_add_symbol ? | |
1050 | (S_GET_NAME (insn->exp.X_add_symbol) ? | |
1051 | S_GET_NAME (insn->exp.X_add_symbol) : "???") : "0"); | |
1052 | fprintf (stderr, "\t\tX_op_symbol = %s\n", | |
1053 | insn->exp.X_op_symbol ? | |
1054 | (S_GET_NAME (insn->exp.X_op_symbol) ? | |
1055 | S_GET_NAME (insn->exp.X_op_symbol) : "???") : "0"); | |
1056 | fprintf (stderr, "\t\tX_add_number = %d\n", | |
1057 | insn->exp.X_add_number); | |
1058 | fprintf (stderr, "}\n"); | |
1059 | } | |
1060 | \f | |
1061 | CONST char *md_shortopts = ""; | |
1062 | struct option md_longopts[] = { | |
1063 | {NULL, no_argument, NULL, 0} | |
1064 | }; | |
1065 | size_t md_longopts_size = sizeof(md_longopts); | |
1066 | ||
1067 | int | |
1068 | md_parse_option (c, arg) | |
1069 | int c; | |
1070 | char *arg; | |
1071 | { | |
1072 | return 0; | |
1073 | } | |
1074 | ||
1075 | void | |
1076 | md_show_usage (stream) | |
1077 | FILE *stream; | |
1078 | { | |
1079 | } | |
1080 | \f | |
1081 | #ifdef comment | |
1082 | /* | |
1083 | * I860 relocations are completely different, so it needs | |
1084 | * this machine dependent routine to emit them. | |
1085 | */ | |
1086 | void | |
1087 | emit_machine_reloc (fixP, segment_address_in_file) | |
1088 | register fixS *fixP; | |
1089 | relax_addressT segment_address_in_file; | |
1090 | { | |
1091 | struct reloc_info_i860 ri; | |
1092 | register symbolS *symbolP; | |
1093 | extern char *next_object_file_charP; | |
1094 | long add_number; | |
1095 | ||
1096 | memset ((char *) &ri, '\0', sizeof (ri)); | |
1097 | for (; fixP; fixP = fixP->fx_next) | |
1098 | { | |
1099 | ||
1100 | if (fixP->fx_r_type & ~0x3f) | |
1101 | { | |
1102 | as_fatal ("fixP->fx_r_type = %d\n", fixP->fx_r_type); | |
1103 | } | |
1104 | ri.r_pcrel = fixP->fx_pcrel; | |
1105 | ri.r_type = fixP->fx_r_type; | |
1106 | ||
1107 | if ((symbolP = fixP->fx_addsy) != NULL) | |
1108 | { | |
1109 | ri.r_address = fixP->fx_frag->fr_address + | |
1110 | fixP->fx_where - segment_address_in_file; | |
1111 | if (!S_IS_DEFINED (symbolP)) | |
1112 | { | |
1113 | ri.r_extern = 1; | |
1114 | ri.r_symbolnum = symbolP->sy_number; | |
1115 | } | |
1116 | else | |
1117 | { | |
1118 | ri.r_extern = 0; | |
1119 | ri.r_symbolnum = S_GET_TYPE (symbolP); | |
1120 | } | |
7dcc9865 | 1121 | if (symbolP && symbol_get_frag (symbolP)) |
252b5132 | 1122 | { |
7dcc9865 | 1123 | ri.r_addend = symbol_get_frag (symbolP)->fr_address; |
252b5132 RH |
1124 | } |
1125 | ri.r_type = fixP->fx_r_type; | |
1126 | if (fixP->fx_pcrel) | |
1127 | { | |
1128 | /* preserve actual offset vs. pc + 4 */ | |
1129 | ri.r_addend -= (ri.r_address + 4); | |
1130 | } | |
1131 | else | |
1132 | { | |
1133 | ri.r_addend = fixP->fx_addnumber; | |
1134 | } | |
1135 | ||
1136 | md_ri_to_chars ((char *) &ri, ri); | |
1137 | append (&next_object_file_charP, (char *) &ri, sizeof (ri)); | |
1138 | } | |
1139 | } | |
1140 | } | |
1141 | ||
1142 | #endif /* comment */ | |
1143 | ||
1144 | #ifdef OBJ_AOUT | |
1145 | ||
1146 | /* on i860: first 4 bytes are normal unsigned long address, next three | |
1147 | bytes are index, most sig. byte first. Byte 7 is broken up with | |
1148 | bit 7 as pcrel, bit 6 as extern, and the lower six bits as | |
1149 | relocation type (highlow 5-4). Next 4 bytes are long addend. */ | |
1150 | ||
1151 | void | |
1152 | tc_aout_fix_to_chars (where, fixP, segment_address_in_file) | |
1153 | char *where; | |
1154 | fixS *fixP; | |
1155 | relax_addressT segment_address_in_file; | |
1156 | { | |
1157 | long r_index; | |
1158 | long r_extern; | |
1159 | long r_addend = 0; | |
1160 | long r_address; | |
1161 | ||
1162 | know (fixP->fx_addsy); | |
1163 | know (!(fixP->fx_r_type & ~0x3f)); | |
1164 | ||
1165 | if (!S_IS_DEFINED (fixP->fx_addsy)) | |
1166 | { | |
1167 | r_extern = 1; | |
1168 | r_index = fixP->fx_addsy->sy_number; | |
1169 | } | |
1170 | else | |
1171 | { | |
1172 | r_extern = 0; | |
1173 | r_index = S_GET_TYPE (fixP->fx_addsy); | |
1174 | } | |
1175 | ||
1176 | md_number_to_chars (where, | |
1177 | r_address = fixP->fx_frag->fr_address + fixP->fx_where - segment_address_in_file, | |
1178 | 4); | |
1179 | ||
1180 | where[4] = (r_index >> 16) & 0x0ff; | |
1181 | where[5] = (r_index >> 8) & 0x0ff; | |
1182 | where[6] = r_index & 0x0ff; | |
1183 | where[7] = (((fixP->fx_pcrel << 7) & 0x80) | |
1184 | | ((r_extern << 6) & 0x40) | |
1185 | | (fixP->fx_r_type & 0x3F)); | |
1186 | ||
7dcc9865 | 1187 | if (symbol_get_frag (fixP->fx_addsy)) |
252b5132 | 1188 | { |
7dcc9865 | 1189 | r_addend = symbol_get_frag (fixP->fx_addsy)->fr_address; |
252b5132 RH |
1190 | } |
1191 | ||
1192 | if (fixP->fx_pcrel) | |
1193 | { | |
1194 | /* preserve actual offset vs. pc + 4 */ | |
1195 | r_addend -= (r_address + 4); | |
1196 | } | |
1197 | else | |
1198 | { | |
1199 | r_addend = fixP->fx_addnumber; | |
1200 | } | |
1201 | ||
1202 | md_number_to_chars (&where[8], r_addend, 4); | |
1203 | } | |
1204 | ||
1205 | #endif /* OBJ_AOUT */ | |
1206 | ||
1207 | /* We have no need to default values of symbols. */ | |
1208 | ||
1209 | /* ARGSUSED */ | |
1210 | symbolS * | |
1211 | md_undefined_symbol (name) | |
1212 | char *name; | |
1213 | { | |
1214 | return 0; | |
1215 | } | |
1216 | ||
1217 | /* Round up a section size to the appropriate boundary. */ | |
1218 | valueT | |
1219 | md_section_align (segment, size) | |
1220 | segT segment; | |
1221 | valueT size; | |
1222 | { | |
1223 | return size; /* Byte alignment is fine */ | |
1224 | } | |
1225 | ||
1226 | /* Exactly what point is a PC-relative offset relative TO? | |
1227 | On the i860, they're relative to the address of the offset, plus | |
1228 | its size. (??? Is this right? FIXME-SOON!) */ | |
1229 | long | |
1230 | md_pcrel_from (fixP) | |
1231 | fixS *fixP; | |
1232 | { | |
1233 | return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address; | |
1234 | } | |
1235 | ||
1236 | void | |
1237 | md_apply_fix (fixP, val) | |
1238 | fixS *fixP; | |
1239 | long val; | |
1240 | { | |
1241 | char *place = fixP->fx_where + fixP->fx_frag->fr_literal; | |
1242 | ||
1243 | /* looks to me like i860 never has bit fixes. Let's see. xoxorich. */ | |
1244 | know (fixP->fx_bit_fixP == NULL); | |
1245 | if (!fixP->fx_bit_fixP) | |
1246 | { | |
1247 | fixP->fx_addnumber = val; | |
1248 | md_number_to_imm (place, val, fixP->fx_size, fixP); | |
1249 | } | |
1250 | else | |
1251 | { | |
1252 | md_number_to_field (place, val, fixP->fx_bit_fixP); | |
1253 | } | |
1254 | } | |
1255 | ||
1256 | /* | |
1257 | * Local Variables: | |
1258 | * fill-column: 131 | |
1259 | * comment-column: 0 | |
1260 | * End: | |
1261 | */ | |
1262 | ||
1263 | /* end of tc-i860.c */ |